Kb Pistons Hypereutectic Cast Piston - Pistons Shovel 88-89ci STD — Harley-Davidson Electra Glide, Super Glide, Wide Glide (1980-1984)

KB Pistons Hypereutectic cast piston for Shovel 88–89 cubic inch engines, featuring 16% silicon content for low thermal expansion and tight piston-to-cylinder clearance. Ideal for stock and mild compression builds running pump fuel.

Features

• Hypereutectic 16% silicon alloy
• Low thermal expansion rate
• Tight piston-to-cylinder clearance
• Optimal ring seal and reduced wear
• Quiet engine operation
• Cast construction

Specifications

• Brand: KB Pistons
• Manufacturer Part #: KB294.STD
• UPC: 800745064073
• Engine: Shovel 88–89 ci
• Size: Standard
• Length: 9.5 in
• Width: 4.8 in
• Height: 4.6 in
• Weight: 2.5 lbs
• Country of Origin: Mexico

Fitment

Fits air-cooled Shovel 88–89 cubic inch engines with stock and mild compression ratios up to 10.5:1.

Frequently Asked Questions

What compression ratio are these pistons rated for?

Best suited for stock to mild compression ratios up to 10.5:1 on pump fuel.

Why hypereutectic instead of forged?

Hypereutectic's 16% silicon content provides a natural thermal barrier, low expansion, tight ring seal, and quieter operation ideal for air-cooled engines.

Do these require machine work or special ring gaps?

Follow the manufacturer's ring gap specifications and piston-to-wall clearance guidelines during installation.

Will these work on pump fuel?

Yes — hypereutectic pistons are engineered for pump fuel in stock and mild compression builds up to 10.5:1.